ODT Mime Types for IIS

Recently, I am working on projects that process open document files.  IIS had occured a 404 error for ODT files, I examined ODT mime type.
If you have a problem like this, you can define MimeType in IIS Manager

File Name Extension : .odt
MIME Type: application/vnd.oasis.opendocument.text 

I hope, it can be helpful for you.

For more extension or explanations, you can  see http://www.openoffice.org/framework/documentation/mimetypes/mimetypes.html